444220444042 has 4 divisors (see below), whose sum is σ = 666330666066. Its totient is φ = 222110222020.

The previous prime is 444220444007. The next prime is 444220444051. The reversal of 444220444042 is 240444022444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 327665801241 + 116554642801 = 572421^2 + 341401^2 .

It is a super-3 number, since 3×444220444042³ (a number of 36 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444220443989 and 444220444007.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055111009 + ... + 111055111012.

Almost surely, 2^444220444042 is an apocalyptic number.

444220444042 is a deficient number, since it is larger than the sum of its proper divisors (222110222024).

444220444042 is a wasteful number, since it uses less digits than its factorization.

444220444042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222110222023.

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 444220444042 its reverse (240444022444), we get a palindrome (684664466486).

It can be divided in two parts, 4442 and 20444042, that added together give a square (20448484 = 4522²).

The spelling of 444220444042 in words is "four hundred forty-four billion, two hundred twenty million, four hundred forty-four thousand, forty-two".